Optical illusions and brainteasers are like miniature mental playgrounds. They cause us to think differently, question our ...

At the interbank foreign exchange, the rupee opened at 85.84 against the greenback before slipping further to 85.90, down 17 paise from its previous close.

Close-up of a light pink peony bloom© Yumehana/Getty Images Close-up of red miniature roses© Brooke.J2/Shutterstock Purple, ...